Appliance for binding loose-leaf sheets



Mmh11g,192s. 1,530,155

F. A. COOPER APPLVIANCE FOR-'BINDING LOOSE LEAF SHEETS Filed Nov. 26 1925 E l FIG Z Patented Mar. 17, 1925.

UNITED A STATES FRANK ALBERT COOPER, F AUCKLAND, NEW ZEALAND.

APPLIANCE FOR BINDING LOOSE-LEAF' S-IIEXEAJIS.f

Application filed November 26, 1923. Serial No. 677,117.

To all whom 'it may concern: l

Be it known' that I, FRANK ALBERT COOPER, of Lyndale, Mt. Albert Road,Auckland, in the Provincial District of Auckland, Dominion of New Zealand, a British subject, have invented an Improved Appliance for Binding Loose-Leaf Sheets, of which the following is a specification.

This invention relates to means employed for securing loose leaves in book form, in such a manner that any one or more of said leaves may be removed as occasion requires. The object of the invention is to provide an improved form of adjustableloose leaf securing means of comparatively simple construction and capable of being operated to securely hold loose leaves in a binder and to enable any number ot said leaves to be removed therefrom, as required, without employing a screw `:tor applying pressure to and releasing the clamping bars as is done at present. f

According to the invention the binder comprises a coverprovided with the usual leali' clamping bars and thongs on which the leaves are litted, said thongs being secured atv one end to one side or member oi' the cover, and at the other end being adapted to be drawn taut or tightened to move the sides or members of the cover towards' each other by tapes attached to and capable of being wound on a rod revolvably mounted in the other side or member of the cover, in order that the clamping bars will grip the leaves.

A key, handle or the like is provided for turning said rod, which has lixed thereon a 'toothed wheel, the'latter being engaged by a. pawl which prevents the toothed wheel and rod from turning under the strain 4of the tightened thongs and tapes (except when required) thereby causing the clamping bars to maintain a rm grip of the leaves placed between the cover, sides or members.

A lever is provided on the cover side or member carrying the revolvable rod for the purpose of enabling said pawl to be disengaged from the toothed wheel and so allow the thongs and tapes to be slackened off and leaves to be removed from the binder.

In the accompanying drawing in conjunction with which the invention will be more particularly described- Figure 1 is a plan View of a binder fitted with the improved leaf securing means, closed, and having portion of the covering of the upper side or member or the binder removed.

Figure 2 is a vertical section of the binder on the line A-A', Figure 1.

Figure 3 is an enlarged part verticall section showing the pawl and the toothed wheel,

Figure 4 is an inverted plan View of the parts shown in Figure 3.

' Figure 5 yis across sectional view of the revolvable rod, showing the method of securing the tapes thereto.

` In the drawings 1 and Qi'epresent the two sides or members which are hinged together by flexible material 3 and iorm the binder.

The back edges of the leaves 4 are shaped to lit on the thongs 5 in the usual way, the

latter being secured at one end to the back l portion of the cover side or member 2 inside same and passing through the usual half round leaf clamping bars 6, into the cover side or member 1 where their other ends are secured to the cross bar 7.

A cross plate 8 secured `in the cover, side or member 1, has 'formed thereon bearings 9, in which a rod 10 is rotatable, the latter having an end 10a extending into a hole 92l opening through an edge ot said coverside or member 1, squared or otherwise shaped to take a suitable key or handle whereby said rod 10 may be rotated in its 'bearings 9. i Between the bearings 9 of each pair thereof the rod 10 is flattened as shown in Figure 5 at 11., and on said flattened portion one end of a tape 12 is secured by a clamping strip 13 screwed to said rod 101.

As many tapes 12 as are required, preferably two, are `attached at one end to the rod 10 in the manner shown, said tapes 12 beingv secured at their other ends to the cross bai 7 to which the thongs 5 are attached.

With the binder opened out fiat, and by placing a key or handle on `the end 10a of the rod 10 the latter can be rotated to wind in the tapes 12. and draw the two cover sides or members 1 and 2 together, thereby forcing the clamping bars 6 together to grip the back edges ot the leaves 4 previously placed in the binder and fitted on the thongs 5.

In order to maintain the tension on the tapes 12 and thongs 5, and to ensure the leaves 4 being kept firmly grip-perd by the clamping bars 6, a toothed wheel 14 is fixed on the rod 10, said wheel14 having its teeth undercut as at 14a and being engaged by a sliding pavvl llkept pressed against said Wheel le by e spring' 16,.. The end of the sliding'v pavvl 15 iv-hlh engages the Wheel 14, is bevelled as at 15a (Figure 3) in order to permit said Wheel to be rotated in the direction indicated by the arrow in Figure 8 and the rod 10` to Wind in the tapes 12, While preventing turning movement of said'rod 10 in the reverse direction.

The pawl 15 and spring 16 are housed in a easing-17 fitted into the. @oven eideon ,memf ber 1, the bottom plate 18 of said casingoontaining a slot il) through which a pin 20 from the pawl 1 5 projects and is entered in a slot 21l in a lever22 pivotedto the-plate 18o-'t thecasing lvandwvorking-in anoplling 23 in the inner side of the cover member l. At its outer .end the lever 9,2 isprovided with a projection 24 capable otbeing engaged by a thumb on finger thepelson operating the device. l

By moving the lever-2? in the direetion indicated by .the arrow in Figur-edith@ naWl l5 can be ,slid from engagement With. the wheel 14y and heldin its disenaagedposition against the action. ot the spring 1 6, Ainz order to allow the tapes 12'to be univound from the rod 10, and the thongs 5 elaeloened oil sulioiently to permit leaves 4; to be removed from hetyveenthe clamping bars 6,

The tapes lare passedcompletelyaround the bar 7V and besides being securedthereto by i'astenings such as rivets -Qfhave the doubled portions-sewn toaetherasfel l2".

The thongs are also passed aroundr the bar Y, and are secured theretoby rivets 5 or the like through the doubledportions, and it desired said doubled portions caribe eX- tended and sewn together in the eanieman? ner as the tapes 125 In Some oaestliebar 7 may be dispensed with and the tapes@ attached direct .to the thongs 5, but theconstrution described and illustrated is preferred on aeconnt of its Sti-enable besides which the bar 7 .Serves as a spreader andlroeps the tapes 12 and thongs 5 in position when slackened oli", i

What I do oleiln and desire to obtain by Letters Fatent of the United States ot AmerlC/l 4151-*- v 1. A loose leaf' binder comprising; iexibly commented cover niernbei's,tliongs, onwhieh the leaves to-be hound are detaohably kfittable, securedk one end to the beek portion ot @over member and passing through Clamping; here intothe other cover mein- 1,5so,155 l ber, and means for tightening the thongs, including, a rotatable axle operatively Connected Wthnthe thongs,k anit'oholL vhefl and pawl normally restraining the axle from rotation in one direction, and a pivoted lever for disengagingfthe-.pawliztrom the ratchet Wheel.

9,. A loose leaf binder, comprising flexibly oonneoted @over nienibers, thongs, on which the leaves to be bound are detaohably titteble, Secured atene endtothe haelnportion of one @over -Inernhen rotatable ,axle mounted in the other 'oever member. and operablv oomieoted withfthe thona'S lor tightoninslhe semeaxratohet wlieeljonlhe axle, .a Paal normally-'engaging the rebelion Wheel, ande nivo-tedlslotted leven ilor disengaging the peril; from the ratchet Wheelt 3, Aloose leafhinder, Comprising flexibly oonneoted'oorenmeinbeisi thongs, on Which the loaves to. he lionndare deteoliably fittahle. secaredlto ones-nd to tliebaokn'oltion of one @over lneinloeria rotatable axle mounted inthe other @over niemloenand onoralil'y C-0H- neoted, with the thongsifor. tightening the same? a ratchet wheel onthefaxle, e Pewl normally engaging the ratchet Wheel, and e nivotedf Slotted lever `for. dlsengsging the ,paal from the ratohet wheel, -the'pawl Vbeing ieoiprooohle in, lieusinannd e Spring in the Same liousinsurglnsthe navl toward the ratchet Wheel.

l, A loose leaf binder Comprising, flexibly connected cover members, tliongsQon which the leaves to be bound-are detachahly-flttable, secured at ,onezendto the baclrportion of one cover member and` passing vvt--hrouglr leaf clamping bars into the other cover member, and means for tightening thethongs, including, rota-table axle operatively connected with the'thongs, a ratchet wheel and pawl normally restraining the axlefrom rotation in one direction, and a pivoted lever for disthe pasvlfrom the ratchet Wheel, a. spring for the payvha housing containing bot-h the pa-Wl andzspring, a slot in the pawl easing, afpin on the pavvl and projeeting throughthecasing, and a slotl iny the lever .receiving the pin onthe pawl.

In testimony' whereof I have signedv my name to this specification `in the presence of two witnesses. v

FRAN-K ALBERT COOBER,

"Witnesses "Winnaar Pmorins, MARY Timmeren; 

